Anyone else using Locale?
Locale for AndroidOut of the box, it's just for managing your phone's functions according to location. However, it can be extended so that it will send sms / email, popup reminders, or work in conjunction with Astrid so that you only get do lists according to the place where you need to do them.
One thing I can see people on here using is the plugin to sms / email people a google map current location link. It's a cinch to set it so as you pass through villages (it works best with a 250 metre + radius so it doesn't have to rely on GPS, and can use phone network, plus can be trained with wifi at known locations), so people can be updated as to your progress on a ride.
I mainly use it to seperate my home and office do lists, but I also set it to remind me to stop at the shops on the way home from work, etc.